TestStepDeleteExistingLabelMatch flake

Happens when using `go test -count 100` ``` 2025-11-19T07:51:04.4722500Z === RUN TestStepDeleteExistingLabelMatch 2025-11-19T07:51:04.4722603Z step_integration_test.go:315: 2025-11-19T07:51:04.4722934Z Error Trace: /home/runner/work/kuttl/kuttl/internal/step/step_integration_test.go:315 2025-11-19T07:51:04.4723052Z Error: Received unexpected error: 2025-11-19T07:51:04.4723150Z namespaces "world" already exists 2025-11-19T07:51:04.4723263Z Test: TestStepDeleteExistingLabelMatch 2025-11-19T07:51:04.4723382Z --- FAIL: TestStepDeleteExistingLabelMatch (0.00s) ```